Select Top 1000000 tsysOS.Image As icon,
  tblAssets.AssetID,
  tblAssets.AssetName,
  tsysOS.OSname As OS,
  tblOperatingsystem.Caption,
  tblAssets.SP As SP,
  tblAssets.Domain,
  tblAssets.Username,
  tblAssets.Userdomain,
  tblAssets.IPAddress,
  tblAssets.Description,
  tblAssetCustom.Manufacturer,
  tblAssetCustom.Model,
  tblAssetCustom.Location,
  tsysIPLocations.IPLocation,
  tblAssets.Firstseen,
  tblAssets.Lastseen
From tblAssets
  Inner Join tblOperatingsystem On
    tblAssets.AssetID = tblOperatingsystem.AssetID
  Inner Join tsysOS On tsysOS.OScode = tblAssets.OScode
  Inner Join tblAssetCustom On tblAssets.AssetID = tblAssetCustom.AssetID
  Left Join tsysIPLocations On tblAssets.LocationID = tsysIPLocations.LocationID
Where tblAssetCustom.State = 1
Order By OS,
  tblAssets.AssetName,
  tblOperatingsystem.Caption